**Question 1:**\nhttps://leetcode.com/problems/valid-palindrome/)\n\n**Question 2:**\nGiven a location of shops, facebook users and `k` is the integer.  Return the k number of shops closer to each facebook user. No input output constrains provided\n\nAfter some discussion he gave me a helper method\nhelper(3, user1, shop1)\nhelper(3, user2, shop1)\nhelper(3, user1, shop2)\n\nAny clue on how would you go about solving the 2nd problem?

Question 1:\nhttps://leetcode.com/problems/valid-palindrome/)\n\nQuestion 2:\nGiven a location of shops, facebook users and k is the integer.  Return the k numb